IC
Ida Clark — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this Ida Clark across the 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed) — first a daughter (b.~1903), then head of a 7-person household.
Age 37
b. ~1903
Female
Daughter
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | Clark |
| Given Name | Ida |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 37 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston City |
| 1935 Residence (County) | Suffolk |
| Additional Details | |
| Occupation | Typist |
| Industry | Treasury Dept |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 450 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Typist |
| Township / Ward | Boston City |
| Est. Birth Year | ~1903 |
Household Members
Census records only state relationship to the household head.
Pairwise kinship is derived (~90–95% accurate), not recorded.
Step/blended families and boarders can break it.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Ida | Age | Birth yr |
|---|---|---|---|---|
| Rita Clark | Daughter | — | 22 | ~1918 |
| Ida Clark | Daughter | — | 37 | ~1903 |
| Gertrude Clark | Daughter | — | 37 | ~1903 |
| Herbert Clark | Son | — | 33 | ~1907 |
| Walter Clark | Son | — | 41 | ~1899 |
| Mary Clark | Spouse | — | 69 | ~1871 |
| Joseph Clark | Head | — | 68 | ~1872 |
Census Appearances
1930
Suffolk, Massachusetts
Daughter, age 26
Suffolk, Massachusetts · implied b. ~1904 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Ida |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Rhode Island |
| Mother's Birthplace | Irish Free State |
| Occupation | Bookkeeper |
| Industry | Electric Co |
| Class of Worker | 6763 |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Suffolk-County, Massachusetts
Daughter, age 37
Suffolk-County, Massachusetts · implied b. ~1903 — 7 household members
| Surname | Clark |
| Given Name | Ida |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 37 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston City |
| 1935 Residence (County) | Suffolk |
| Occupation | Typist |
| Industry | Treasury Dept |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 450 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
Model Tree
An inferred pedigree reconstructed from census links — up to 4 generations within the 1900–1950 window. Closer generations are built from household co-residence; deeper ones are bridged by following a relative to their own childhood census. Confidence compounds and weakens with each generation.
Our Model Tree links Ida Clark across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Ida Clark
Daughter · 1940 · age 37 · b. ~1903 · Massachusetts
★ You are viewing this record
Sibling
Gertrude Clark
Sibling · 1940 · age 37
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Herbert Clark
Sibling · 1940 · age 33
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rita Clark
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Walter Clark
Sibling · 1940 · age 41
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Suffolk-County, Massachusetts
Open full size
1940 US Federal Census — Suffolk-County, Massachusetts
Page Contents
41 people indexed on this census page (nara:1940:m-t0627-01680-00050)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Josephine Callahan | 74 | Wife | — | Massachusetts |
| 2 | Richard M. Ratcliffe | 55 | Head | Newspaper | England |
| 3 | Anna Ratcliffe | 41 | Wife | — | Massachusetts |
| 4 | Mary Ratcliffe | 10 | Daughter | — | Massachusetts |
| 5 | Joseph D. Clark | 68 | Head | — | Rhode Island |
| 6 | Mary Clark | 69 | Wife | — | Irish Free State |
| 7 | Walter Clark | 41 | Son | Mechanic | Rhode Island |
| 8 | Ida Clark THIS PERSON | 37 | Daughter | Typist | Massachusetts |
| 9 | Gertrude Clark | 37 | Daughter | Billing Clerk | Massachusetts |
| 10 | Herbert Clark | 33 | Son | Filing Clerk | Rhode Island |
| 11 | Rita J. Clark | 22 | Daughter | Salesman | Massachusetts |
| 12 | Martin J. Crowley | 49 | Head | — | Massachusetts |
| 13 | Gertrude M. Crowley | 49 | Wife | — | Massachusetts |
| 14 | Fred J. Crowley | 19 | Son | — | Massachusetts |
| 15 | Theodore J. Crowley | 17 | Son | — | Massachusetts |
| 16 | John V. Kenney | 49 | Head | Proprietor | Massachusetts |
| 17 | Gertrude G. Kenney | 46 | Wife | — | Massachusetts |
| 18 | Katherine Kenney | 22 | Daughter | — | Massachusetts |
| 19 | Gertrude Kenney | 20 | Daughter | — | Massachusetts |
| 20 | Charlotte Kenney | 18 | Daughter | — | Massachusetts |
| 21 | Arthur Hennessey | 44 | Head | Patrolman | Massachusetts |
| 22 | Mabel Hennessey | 44 | Wife | — | Massachusetts |
| 23 | Helen Mulloy | 40 | Sister in law | — | Massachusetts |
| 24 | Bernard Mcternan | 35 | Head | Salesman | Massachusetts |
| 25 | Rita Mcternan | 33 | Wife | — | Massachusetts |
| 26 | Virginia Mitchell | 11 | Lodger | — | Massachusetts |
| 27 | Arthur W. Clattenburg | 64 | Lodger | Watchman | Nova Scotia |
| 28 | Charles F. Clattenburg | 21 | Lodger | Stenographer | Massachusetts |
| 29 | Julia Feeney | 60 | Head | Matron | Irish Free State |
| 30 | Mary R. Feeney | 28 | Daughter | Filing Clerk | Massachusetts |
| 31 | William V. Feeney | 26 | Son | Pressman | Massachusetts |
| 32 | James F. Whelen | 70 | Head | — | Irish Free State |
| 33 | Mary E. Whelen | 69 | Wife | — | Massachusetts |
| 34 | Marie F. Whelen | 35 | Daughter | Dressmaker | Massachusetts |
| 35 | Margaret Whelen | 29 | Daughter | Stenographer | Massachusetts |
| 36 | Rita F. Whelen | 25 | Daughter | Typist | Massachusetts |
| 37 | Chester Bent | 30 | Head | Floor Supt. | Nova Scotia |
| 38 | Maureen Bent | 26 | Wife | — | Massachusetts |
| 39 | David Bent | 2 | Son | — | Massachusetts |
| 40 | Sandra Bent | 2 | Daughter | — | Massachusetts |
| 41 | Elsa Soderberg | 26 | Lodger | Stenographer | Massachusetts |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 United States Federal Census (NARA). Our Model Tree links this person across census decades using XGBoost-based record linkage, with per-link confidence scores. Household corroboration strengthens the signal when co-residents appear on the same census pages in multiple years.
Source: National Archives and Records Administration (NARA)